baber/WOPTO huggingface dataset:
Patent GB-1174682-A (GB)
Title: A Method of Production of Plastic Lenses with Aspherical Surfaces
Inventor: WICHTERLE OTTO
IPC: G02C7/04
Filed: 1967-02-09
Abstract: 1,174,682. Abrading lenses. CESKOSLOVENSKA AKADEMIE VED. 9 Feb., 1967 [15 Feb., 1966], No. 6153/67. Heading B3D. [Also in Division C3] A method of production of plastic lenses with aspherical surfaces, such as contact lenses, comprises heating an essentially unswollen, mechanically workable polymer with a plastic memory which is then deformed and cooled in its deformed state, in which state it is mechanically worked by rotationally symmetrical, preferably spherical, cylindrical or conical, surfaces, and then is relaxed by further heating to a free state of internal stress. The material of the lens is a cross-linked polymer and may be deformed mechanically or by gas or liquid pressure. The lens may be deformed and ground so as to be spherical and after reheating relaxes to have an aspherical shape. If the lens is a hydrophilic contact lens, the relaxation may be effected by swelling in water or alcohol. The lens may be for cameras, spectacles and the like.
Patent GB-558074-A (GB)
Title: Improvements in or relating to the production of hard, corrosion resistant alloy surfaces on metal articles
IPC: C23C4/08
Filed: 1942-05-08
Abstract: 558,074. Coating metals. LUMB, C. F. May 9, 1942, No. 6160. [Classes 72 and 82 (ii)] [Also in Group XXII] A hard corrosion-resistant alloy surface containing beryllium is produced on a metal article by spraying beryllium alloy in powder form upon the surface of the article by means of a spraying pistol or apparatus, such as that described in Speciftcation 432,831, in Which compressed air or gas is used to induce a flow of the powder from a container therefor and through the spraying nozzle, where the sprayed powder is subjected to heat sufficient to render it plastic and adherent to the article. A beryllium-copper alloy, which may contain about 2 per cent. beryllium, may be sprayed on a steel article. which is then heat-treated in a hydrogen atmosphere at about 1100‹C., and thereafter quenched., so that it is hardened and tempered in one operation. The invention may be used for building up worn machine and like parts, the surface coating of moulds and dies, the surface coating of rods and wire, the production of non- sparking hammers and other tools, and the coating of tool tips and valve heads. Besides beryllium copper, beryllium nickel and beryllium aluminium alloys may be employed. Reference has been directed by the Comptroller to Specifications 313,506, [Class 82 (ii)], and 523,071.
Patent GB-848624-A (GB)
Title: Lighting equipment for motorised bicycles, motorcycles and the like
IPC: B62J6/00
Filed: 1959-02-23
Abstract: 848,624. Vehicle lighting control systems. LINDBLAD, K. B. Feb. 23, 1959 [Feb. 21, 1958], No. 6193/59. Class 38 (4). A lighting system for motor-cycles or like vehicles comprises a headlight 11 and a tail-light 14 which are connected in series to a generator 10 for night driving by a switch 15, the tail-light 14 under these conditions being under-run so that it emits less light than it is capable of emitting but which is sufficient for night vision. During night driving a separate stop-light 16 is employed, controlled by a brake-operated switch 17, the stop-light 16 emitting sufficient light to be seen under night conditions but not under daylight conditions. During daylight use when the series-connected head and tail light circuit is broken by the switch 15 the taillight 14 is adapted to be used as a stop-light by connecting it directly to the generator 10 by a brake-operated switch 18 under which condition the tail-light 14 is normally run so that it emits an intense light which is visual under daylight conditions. During such time the normal stop-light 16 is disconnected. The head light 11 may have main and dip filaments and the tail and stop-lights 14, 16 may be in a common housing. Traffic signals 20, 21 may also be provided.
Patent GB-1246277-A (GB)
Title: Improvements in the crystallisation of substances
Inventor: GIRLING GEOFFREY WILLIAM
IPC: B01D9/00
Filed: 1967-12-29
Abstract: 1,246,277. Reflux crystallization. BENZOLE PRODUCERS Ltd. 13 Dec., 1968 [29 Dec., 1967; 8 Feb., 1968], Nos. 59008/67 and 6208/ 68. Heading BIG. An impure crystallizable substance which may be first converted into a crystal/mother liquor slurry is purified by reflux crystallization in a vertical column having a closely fitting rotary Archimedean, helix, the flight pitch of the helix being ¢ to 1¢ times and the flight width of the helix being #- times the internal diameter of the column. The substance may be solid or liquid (e.g. benzene) at ambient temperature. The slurry may be formed by direct or indirect heat exchange. As shown, a slurry formed in a scraper crystallizer 2 is passed via line 6 into a reflux column 7 having a heating jacket 9, cooling jacket 12, and rotary helix 8. Purified product is withdrawn through line 15 and impurities through line 16.
Patent GB-848358-A (GB)
Title: Improvements in or relating to roofing and siding sheets and fixing devices therefor
IPC: E04D3/363
Filed: 1958-02-26
Abstract: 848,358. Sheet roofing and walling. COOKSON, W. Feb. 17, 1959 [Feb. 26, 1958], No. 6262/58. Class 20(4) A sheet metal &c. clip 11 has first and second snap action means 16, 19 for engaging in internal grooves 9, 10 in the side walls 6, 7 of an inverted channel section rib 5 upstanding from the plane of a metal &c. roofing or siding sheet 4. The clip 11 is secured to a purlin 23 by a screw 21 and is formed with a stop piece 17 which determines the distance between the base 15 of the clip and the snap action means 16 necessary for the snap action means 16 to engage in the groove 9. Reference has been directed by the Comptroller to Specification 769,527.
Patent GB-575808-A (GB)
Title: Improvements in or relating to the manufacture of flexible tubes
IPC: F16L11/02
Filed: 1944-04-06
Abstract: 575,808. Flexible tubes. ROBERTS, F. T., and ROBERTS, R. E. April 6, 1944, No. 6502. Convention date, April 13, 1943. [Class 99 (ii)] Relates to a 'method of making a corrugated flexible tube having a tensioned metallic or non-metallic coiled spring embedded in its wall. The lining 10 of rubberized fabric is applied to a mandrel 5 and coated with adhesive or rubber solution, and a close-coiled spring 20 has its end'turns soldered together and secured on the tube by tape 35, the spring then being stretched to the position shown and its other end secured to -the tube A rubberized fabric tape, 30 may then be wound over the coils of the spring and the assembly is partly vulcanized. The tube is removed from the mandrel and a rubber bush 50, Fig. 14, mounted on a sleeve 55 is inserted in each end 'of the tube which is then mounted on a mandrel 60. A stockinette covering 40 carried by a tubular holder 65 is slid over the 'tube and the end of the covering is secured to the tube and bush by a tape 52. The holder 65 is withdrawn allowing the covering 40 to contract on to the tube, and the tube is corrugated by winding a cord between the convolutions of the spring. The tube is 'then finally vulcanized and the cord is removed. The lining and covering may be wholly of rubber and the spring may be of steel or of semihard rubber or of plastic material. The adhesive tape 30 may be dispensed with.
Patent GB-777762-A (GB)
Title: Improvements relating to contact spring supports for electromagnetic relays
Inventor: LESLIE JOHN DOUGLAS
IPC: H01H50/54
Filed: 1955-03-07
Abstract: 777,762. Electromagnetic relays. SIEMENS BROS. & CO., Ltd. Feb. 8,1956 [March 7, 1955], No. 6602/55. Class 38(5) The fixed contact springs (not shown) of a light-current relay having a yoke 8 are supported at their free ends by shoulders 3 of an insulating plate 1 or 2. The two plates 1. 2 are associated, respectively, with two contact-spring assemblies which lie alongside and parallel to, the plates, on either side thereof, the shoulders 3 being directed towards the free ends of blades and cooperating with lugs formed on the latter. Each plate may be formed by stamping, or alternatively, may be moulded in which case the shoulders may extend beyond the plane of the plate and the blade lugs be omitted. The plates are held together by a tubular rivet 4 and spacer 5 and are clamped to the yoke 8 by screws 7, 7<SP>1</SP> passing through a channel 6 and threaded into the yoke.
Patent GB-115042-A (GB)
Title: An Improved Differential Gear for Agricultural Vehicles.
IPC: F16H48/10
Filed: 1918-04-18
Abstract: 115,042. Ott, Geb. April 18, 1917, [Convention date]. Differential gearing for agricultural tractors comprises a driving pinion 1 gearing with planet pinions 2 meshing with an internally toothed wheel 3, the planet pinions 2 and wheel 3 being connected respectively with the shafts of the driving wheels through intermediate gearing. In a modification, the planet pinions are provided with coaxial pinions meshing with an externally toothed wheel. The planet pinions may be connected to their driving shaft through resilient devices as shown. The planet pinions are carried in members 6 which abut against spring pins 14 mounted in cylinders 9 connected with the driven shaft.
Patent GB-581715-A (GB)
Title: Improvements relating to wired intercommunication systems
IPC: H04M9/00
Filed: 1945-03-16
Abstract: 581,715. Intercommunication systems. FERRANTI, Ltd., and WOOD, J. March 16, 1945, No. 6636. [Class 40 (iv)] in a wired intercommmunication system of the type embodying a master station and one or more subsidiary stations, direct communication between the master station and any one of the subsidiary stations being capable of origination at either end, calling is performed by feeding the output of a speech amplifier embodied in the system back to its input circuit and feeding the audio frequency oscillations so produced to the called station. The master station X has a three-position sendreceive-call switch S<1> and a two-position call and speak-off and receive line switch such as S<111> associated with each subsidiary station. Each subsidiary station has a three position send and receive-off-call switch such as S<1111>. To call station Y, the party at X moves switches S<1> and S<111> to the call position, the output winding 4 of the amplifier is connected to its input winding 2 over wires 7Y, 8Y and the oscillations produced pass through the speech coil of a microphone 11, which, in common with that at station X (1), acts as both receiver and transmitter. Both parties then move their switches into the appropriate sending and receiving positions for conversation which takes place over wires 6Y, 8Y. Calling by subsidiary stations is performed by movement of S<1111> only, calling by a third station during a conversation being prevented by the operation of the engaged station's line switch. Visual identification of the calling station is given at station X by the appropriate neon lamp 9 or 10 being extinguished when its circuit is opened by S<1111> in the calling position.
Patent GB-605698-A (GB)
Title: Holder for fastener elements
IPC: F16B37/04
Filed: 1944-04-11
Abstract: 605,698. Making nuts. SWANSTROM, K. A. April 11, 1944, No. 6655. Convention date, May 15, 1943. [Class 83 (ii)] [Also in Group XXV] The cage member of an anchor nut is formed by slitting a blank along a line 32 parallel to but offset from the centre line of the fixing holes or welding-projections 34, slitting along a line at right angles to separate side flanges 26, and slitting along diagonal lines to separate the rear flange from the side flanges. The corners are trimmed from the flanges which are then stamped to form stepped flanges embracing the base of the nut member, the side flanges being shaped with projections to act as detents to retain the neck portion of the nut after it has been sprung into place. The slitting and stamping may be effected in a series of dies or in a single die.
Patent GB-278950-A (GB)
Title: Improvements in carburettors
IPC: F02M1/00
Filed: 1927-03-10
Abstract: 278,950. Dodson, E. March 10, 1927. Spray carburettors.-In carburettors in which an auxiliary passage communicates with and receives air from the main inlet, which air is distributed to other parts of the carburettor, e.g. the diffuser nozzle, pressure balance or altitude control, communication between these parts and the auxiliary passage is effected through a space in a hollow detachable cover of the float chamber. This obviates the necessity of forming the passages in the body of the carburettor, with consequent intricate castings, and, at the same time, reduces the dimensions of the carburettor in those directions where space is valuable. The Venturi passage 4, Fig. 1, is fed with rich mixture through a duct 7, annular passage 6, and holes 5, the mixture being supplied from a well 8 with diffuser tube 9. The float-chamber cover 11 is hollow and the space 12 therein communicates on the one hand through the auxiliary passage 14 with the air intake 3 and on the other hand, through 15, 16, 18 with the diffuser 9, float chamber 10. and altitude control 17 respectively. This control comprises a rotatable valve 20 which communicates with the diffuser bore through a passage 19. In a double carburettor, Figs. 2, 3, 4, and 6, there are two altitude controls 17, the valve spindles 22 of which are connected through linkage 23, 24, 25 to a common actuating shaft 26, mounted in bearings 27, 28, and actuated through lever 31 and link 32 from the throttle spindle 33. The altitude controls and their actuating mechanism are mounted on an additional cover 29, Fig. 4, which encloses a shaft 39, Fig. 3, for actuating, through fingers 38, the valve spindles 35 of supplementary or power nozzles 36, Fig. 6. The shaft 39 is actuated from the throttle spindle through a pushrod 42, Figs. 2 and 3, and a finger 41. The auxiliary passages corresponding to 14, Fig. 1, are shown in Fig. 6, at 44, the diffuser tube at 90, the outlet from the walls at 54, and slowrunning nozzles at 45, whilst the aperture leading to the float chamber 56 from the space 50 in the cover is shown at 55. Air from the auxiliary passages 44 passes to the diffuser tubes 90 through ducts 48, such air picking up any fuel that may issue from the power nozzles.
Patent GB-994258-A (GB)
Title: X-ray film package
IPC: G03B21/64
Filed: 1964-02-18
Abstract: 994,258. X-ray film package. ELTRO G.m.b.H. Feb. 18, 1964 [Feb. 26, 1963], No. 6684/64. Heading H5R. A flexible X-ray film package comprises a flat rectangular sleeve, of a synthetic resin containing reinforcing agent and black, lightabsorbent colouring material, sealed along the ends of the sleeve by high frequency welding. The resin may be e.g. polyethylene, the reinforcing agent lead or a lead salt, and the colouring material carbon black. The package is waterproof and may be used for the radiography of e.g. tubular ducts &c. To remove the film for developing, one or more edges of the bag may be cut.
Patent GB-1271044-A (GB)
Title: Tape-winding machine
IPC: G11B23/113
Filed: 1970-07-27
Abstract: 1,271,044. Splicing record tapes. KING INSTRUMENT CORP. 27 July, 1970 [9 Feb., 1970], No. 6700/71. Divided out of 1,271,042. Heading G5R. [Also in Divisions G2-G3] A splicing-tape dispenser is mounted on a carriage plate 314 which is pivoted about a fixed shaft 322 in such a manner that anticlockwise rotation causes a feed roller 337 to advance a predetermined length of splicing- tape 330 into the path of a knife (364, Fig. 7, not shown) which subsequently severs it. As shown, a gear-wheel 324 is coupled to the shaft 322 through a one-way clutch 320 which allows it to rotate clockwise but not anti-clockwise, so that anti-clockwise rotation of the carriage plate 314 causes an intermediate gear-wheel 333 to drive the feed roller 337. The two record tapes or film to be spliced are located on surface 56, as described in Specification 1,271,043, and clockwise rotation of plate 314 by means of a pneumatic actuator 372 brings the splicing-tape dispenser into position over the two ends to be joined. Operation of a pneumatic actuator 358 then advances a block 362, carrying the knife (364) which severs the predetermined length of splicing-tape and pressurepads (368, Fig. 6, not shown) which press the severed length of splicing-tape on to the tape or film ends located on the surface 56. Return of the dispenser to its initial position as shown causes a further length of splicing-tape to be advanced into the path of the knife (364).
Patent GB-470652-A (GB)
Title: Improvements relating to wipers or cleaners for wind-screens or the like
Filed: 1936-02-29
Abstract: 470,652. Windscreen-cleaners. TRICOFOLBERTH, Ltd. (Trico Products Corporation) Feb. 29, 1936, No. 6174. [Class 138 (i)] The arm of a windscreen or like cleaner is secured to an oscillating actuating shaft by means including an apertured socket portion on the arm adapted to locate a sleeve through which the shaft projects, the shaft being threaded for engagement with a nut whereby the arm is clamped to the shaft through the medium of the sleeve. In the construction shown in Figs 1 and 3, the wiper arm is in two parts 28, 53, the upper part 28, of channel form, being formed with an aperture to accommodate the end of a shaft 10 adapted to be oscillated by means of a motor (not shown). The shaft 10 has a coned serrated portion 12, a plain portion 15, and a screw-threaded end 16 and is surrounded by an apertured sleeve 20 which fits non-rotatably within the upper part of the channel 28. A nut 32 engages the end 16 to clamp the wiper arm on the shaft 10. The lower part 53 of the arm is hinged to the upper part and is pressed towards the screen by a spring 43. The lower end of the part 53 is connected to the wiper blade through a slotted channelled member 56. In a modification shown in Fig. 4, the wiper arm is provided with a sleeve 70, the inner end of which engages the coned portion 12 of the shaft 10, the outer end being surrounded by an annular flange 75 formed on the wiper arm. In a further modification shown in Fig. 8, a collar 85 serrated on its exterior and interior is interposed between the coned part 12 of the shaft 10 and a shouldered part of the wiper arm.
Patent GB-176787-A (GB)
Title: Improvements in coaster and brake hubs for cycle driving wheels
IPC: B62L5/16
Filed: 1922-03-07
Abstract: 176,787. Bryan, W. G. March 8, 1921, [Convention date]. Back-pedalling brake and free-wheel arrangements.-In single-speed coaster hubs for cycles wherein, on forward-pedalling, a floating clutchnut 27 moves inwards on the quick-threaded spigot 24 of the sprocket 23 and engages dogs 28 upon the wheel hub 21 and, on back-pedalling, the nut 27 moves in the reverse direction till dogs 34 are engaged and the brake applied, a spring 31 is provided, which causes the dogs 34 to disengage easily when forward-pedalling is recommenced. A drag spring 29 is fitted. To facilitate engagement, one of the elements of the dog clutches has twice or three times the number of dogs on the mating element. As shown, the brake shoes 55 are held slidingly by lug guides 56 on the plate 12 fixed to the axle. The cams 49 press the cam levers 51 pivoted on the plate 12 outwards, causing cams 53 to press the brake shoes 55 against the rim 64 of the hub flange 65 on application of the brake. Springs 58 and 60 return the brake parts to their normal position. In a modified form of brake the cams 49 press on toggle levers tending to spread them and thus pressing the brake shoes against rim 64, leaf springs being provided between the toggle arms and the backs of the brake shoes.
Patent GB-842378-A (GB)
Title: Improvements in or relating to drying articles of laundry
IPC: D06F58/14
Filed: 1958-03-03
Abstract: 842,378. Drying cabinets. WEBER, H. March 3, 1958 [March 8, 1957; Dec. 2, 1957; Jan. 31, 1958], No. 6800/58. Class 34(1) A portable suspension type . drying cabinet 1, Fig. 1, which is flexible such that it may be folded when not in use and carried in bag form by its suspension members 3 comprises an air impermeable casing around upper and lower frame members 2, 12, Fig. 3. Tapes depending from the frame 2 support a U-shaped member 8 having associated slidable clothes-supporting rods 11 and the members 3 are secured to the corners of the frame 2. A member 4 supports any necessary clothes hangers, a slide fastener 10 providing access to the cabinet. Hot air from any suitable source is introduced through a flexible conduit 14 which is, when not in use, tucked into a flap 21, Fig. 10, formed in the casing bottom. The moisture-laden air discharges through holes 6. The member 8 may be supported within the casing by engaging each side arm in pockets 9b, Fig. 6, formed in a tape 9a secured to the associated casing wall.
Patent GB-660563-A (GB)
Title: Improvements in fuel injection pumps particularly for internal combustion engines
IPC: F02M59/46
Filed: 1947-03-11
Abstract: 660,563. Fuel-injection pumps. ZELEZNY, A. March 11, 1947 [March 25, 1946]. No. 6838/47. [A Specification was laid open to inspection under Sect. 91 in the Acts, Sept. 12, 1947]. Class 102 (i). In a fuel-injection pump, the suction valve and the delivery valve 7 both have flat seats and are mounted on the opposite sides of a separating plate 6. The suction valve 1 is guided in a sleeve and is loaded by a spring 2 and its end is tapered so that the area of the seat is less than that exposed to the pumping space. The sleeve has a passage 11 connected to the inlet passage 8 of the pump and the valve seat surrounds an opening 4 that is larger than the opening covered by the delivery valve which is described in Specification 660,562.
Patent GB-952563-A (GB)
Title: Improvements relating to curtain rails
Inventor: MARTIN JOHN EWING
IPC: A47H7/02
Filed: 1962-02-22
Abstract: 952,563. Curtain rails. HARRISON (BIRMINGHAM) Ltd. Feb. 4, 1963 [Feb. 22, 1962], No. 6849/62. Heading A4B. A curtain rail has one end connected to a bracket 14 to be pivotable about a pivot 15 and the other end releasably connected to a bracket 16 by engaging a hook-like projection 17 with an aperture 18 in the web 10 of the rail so that when released the rail may be inclined downwardly to facilitate access to the runners and hooks, the inclination being limited by a cord 19. Lateral movement to affect engagement or disengagement of the projection with the aperture is allowed by flexibility of the rail, play in the pivot 15 or by a hinged end part containing aperture 18.
Patent GB-313068-A (GB)
Title: Improvements in and relating to stops or catches for sliding members, such as windows, doors and the like
IPC: E05F11/00
Filed: 1928-03-05
Abstract: 313,068. Salthouse, E. March 5, 1928. Holders for sliding windows, sliding doors, and the like comprise a lever arm 2 pivoted in a trough member 1 secured to a sash &c. 9 and carrying at its free end an eccentrically pivoted roller 4. The arm is, urged towards the horizontal position by a spring 7 but is normally held raised from that position by contact of the roller with an upright portion of the other sash 10, or with a protecting strip of fibre, rough. surfaced metal &c. carried thereby. The lever arm yields during the closing movement of the window but holds the window against opening movement with a friction grip which is increased by rotational movement of the roller. Downward movement of the lever is limited by a stop 6 and upward movement may be prevented by insertion of a pin 11 through holes in the sides of the trough 1.
Patent GB-290398-A (GB)
Title: Improvements in or connected with electrical heating apparatus
IPC: H05B3/00
Filed: 1927-03-12
Abstract: 290,398. Kimber. A. W. March 12, 1927. Two-part couplings.-An electric heating resistance element E is fitted with a pair of contacts T, T<1> at one end of tapering form to fit between converging terminal plates H<1>, H<2> fixed in a box &c. H, the other end E<3> of the element E being supported by a holder B in which is mounted a spring S that presses the contacts T, H<1>, T<1>, H<2> together. The resistance wire is wound on the element E and returns by a central passage E<2>. The contacts may be so arranged and the box H so formed that the element is inserted laterally or from above or below.